The West Coast’s native Olympia oyster serves an important role as an ecosystem builder with its ability to filter the water. But owing to reasons that are still somewhat unclear, over the last few millennia native oysters have largely disappeared from the San Francisco Bay.

A few years ago the State Coastal Conservancy went looking for something new: habitat restoration that would also address sea level rise. Two years into a pilot experiment, the results suggest that in the appropriate places this green climate adaptation might work.

Some of the area’s most amazing spiders are the ones you’re most likely to miss. With colorful appendages and a big pair of striking frontal eyes, the diminutive Habronattus genus of jumping spider might be one of the cutest, and most surprising, of Western arachnids.

Some people swear there's earthquake weather. Some people swear there's not. So what happens when an earthquake strikes California during earthquake weather? We called the Berkeley Seismology Lab to get an expert opinion.

The researchers log the sighting: three blue whales. From this distance, the world’s largest mammal looks like nothing more than a silver glint on the ocean’s surface. But the spotting is significant to the researchers, who aim to protect the animals from passing ships.